Portable electric lamp.



Patented Mar. I2, |90I.

(Application led In. 8, 1900.)

(No ModaL) WHNESSES UNITED` STATES PATENT OFFICE.

MORRIS NEWGOLD, OE NEW YORK, N. Y.

PORTABLE ELECTRIC LAM P.

SPECIFICATION forming part of Letters Patent No. 669,546, dated March12, 1901,

Application filed Marchr. 1900. Serial No. 7,762. (No model..

To a/ZZ whom it may concern/I- Be it known that I, MORRIS NEWGOLD, a

rcitizen of the United States, residing in the borough of Manhattan,city, county, an`d State of New York,rhave invented certain new anduseful Improvements in Portable Electric Lamps, of which the followingis a specification.

My invention relates to portable electric lamps, and has for its objectto produce a portable lamp which may be applied to a Variety ofuses,.and is especially adapted to'be employed as a flash-light totemporarily illnminate objects at night, and as a carriage or bicyclelamp by being strapped or lashed to the pole of the carriage or thesteering-fork of the bicycle.

In the accompanyingdrawingslhave shown by way of example a portable lampembody ing my invention.

The characteristic features of my invention will be clearly pointed outin the claims.

In the drawings, Figure 1 is a longitudinal section through the lampstructure, the sec-- tion being taken on line 1 1 of Fig 2. Fig. 2 is anexterior View of the lamp structure. Fig. 3 is a section on line 3 3 ofFig. 1 looking in the directionof the arrow. This view is intended toshow the wire connection between the stationary contact-plate in theinterior of the casinggwhich receives the impact of thehattery-termnal,and one of the lampcaI-rying arms. Fig. 4 is an enlarged det-ailsectional View of a modified form of lampmonnting, in which theswitching of the current is eected by turningthe lamp to a certainposition. Figs. 5 and 6 are detail face views of the contact-washers bywhich the switchingjust mentioned is effected; and Figs. 7`and 8 areexternal and sectional views, respectively, of a modified form of switcharrangement.

,In the drawings, 1 is a suit-able metal battery-casing, preferablycylindrical,and adaptlated" from the metal casing and is connected by awire 6 and stud 8 with one of the lampcarrying arms 7, which is alsosuitably insulated from the casing 1. The arm 7 swings freely upon thestud 8 in the side of the casing 1 and is insulated therefrom. At theOpposite side of the battery-casing 1 is another stnd 9, electricallyconnected to the battery-casing 1 and serving as the pivot of' the otherlam pcarrying arm 10. .E These arms 7 and 10 support the lamp-casingand'its connected parts. This lamp-casing is shown herein as an outershell 11 of sheet metal, having integral therewith a reflector 12 and alamp-socket 13. One termi-nal of the lampsocket is constituted by thecasing formed integral with the reflector, and the other terminal of thelamp-socket is constituted by a screw 14, insulated from the casing,which is connected by wire 15 to the screw or stud 16, upon which thelamp is adapted t swing. The arm 10 is electrically connected to the lamp-casing 11 by the screw 17, by which the y parts are pivotally securedtogether.

The lamp 18 fitsin the socketin the usual manner. 'lhe end of thelamp-casing is or may be suitably closed by a bulls-eye 16, which is secured in place by a clamping-ring 20, which engages the lamp-casing. Atthe Opposite end of' the battery-casing is a suitable cap 21, carrying afork 22, in which a springy switcharm 23 is pivotally mounted. ThisswitchaI'm 23 is of angular form and enters a slot in the side of, thecap 21 and is adapted when depressed to make momentary contact with thejacket of the lower cell of the battery. The switch-arm is, however,adapted to make permanent contact, if desired. A suitable washer 24, ofinsulating material, may be employed in the cap 21 to canse the batteryto be given a strong forward thrust when the cap 21 is on thebattery-casing in order to make good connection, and the batteries aresurrounded by a tube of insulating material 25, preferably ordinarycardboard, in Order to entirely insulate fthe battery from its casing.

The circuit of the device may be traced as follows: lfrom the battery bywire 6 to the arm 7, thence by screw 16 and wire 15 to the centrallamp-contact through the lamp, re flector and lamp-casingll, by screw17, and arm 10, to the metallic battery-casing l, and

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thence, by means of the switch 22 23, to the jacket of the battery, whenthe switch-arm 23 makes contact with such jacket'. It will be understoodthat the pivotal mountings of the lamp are sufficiently loose to enablethe lamp to be swung into various positions-for instance, into thedotted-line position a in Fig. 2-and are sufficiently stift or rigid tomaintain the said lamp in the positions into which it is swung. it willthus be seen that the lamp may be turned through an angle of one hundredand eighty degrees and will remain in the positions into which it may beswung, so that the battery-casing may be mounted in any desired positionand the lamp swung with reference thereto to bring it into the properposition for use.

It will be understood that while l will in this application show anddescribe two forms of lamp I do not mean to thereby limit myself to theform shown; but other structures are also within my invention.

in Figs. 4, 5, and 6 l have shown a moditication of the structuredesigned to effect the switching ofthe current by swinging the lamp intothe dotted-line position b of Fig. 2. This position is selected forconvenience. it is obvious, however, that other positions may beselected without depart-ing from my invention. The structure shown inFigs. 4, 5, and 6 is applied to but one of 'the lamp-supporting arms,let us say to the arm which corresponds to the arm l0 of the lamp shownin Fig. 1; This arm is lettered 10a in Fig. it, and the lamp Illn ispivotally secured thereto by a screw 173, which is insulated both fromthe casing and from the arm l0, The arm 10iL has secured thereto awasher 26, having an insulated bushing and an insulated section 27. Thelamp-casing lla is provided with a washer 28, composed of insulatingmaterial with the exception of the section 29, which is metallic and isin electrical connection with the lamp-casing lln and insulated from thescrew 17a. It will be obvious that so long asthe contact-plates 26 and29 are in contact current will pass to the lamp; but

when the lamp is swung on its pivotal mounting into the dotted-lineposition the insulating material 27 will come against the plate 29 andthe insulating material 28 will come against the plate 26, therebybreaking the circuit.

In Figs. 7 and 8 I haveV shown a modified form of switch arrangement,which, however, is preferred by me to the form-shown in Figs. l and 2.In this form of my construction the washer 24 carries a contact-plate30, adapted to contact with the lower end of the cell 2. Thiscontact-plate is provided with a pivotscrew 3l, upon which a switch-arm32 swings, which switch-arm is frictionally engaged by a spring-washer33, bearing against an insu-y latin g-washer 34. The switch-arm 32 isadapted for temporary contact with the cap 2l to momentarily close thebattery-circuit. When a light other than a flash-light is to be shown,the arm 32 may be rotated on its pivot-screw 3l until it contacts with astop 35, mounted on and in electrical connection with the cap 2l.

What I claim, and desire 'to secure by Letters Patent, is

l. In a portable lamp of the character described, the combination of abattery-casing and a lamp-holder and a pivotal electrical and mechanicalconnection intervening between the lamp-holder and the battery-casing,comprising in its` structure two pivotal elements upon each of which thelamp is adapted to swing independently so as to permit the lamp to havetwoindependent swinging movements with respect to the battery-holder.

2. ln a portable lamp, substantially as described, the combination of asuitable battery-casing and lamp-holder, a pivotal electrical andmechanical connection uniting the lamp and battery-casing contact-faces25, 27, 2d, 29 of insulating and conducting material embracing the saidpivotal connection and ,forming part of the circuit and adapted to cntoft the current upon rotation of the larnpholder.

3. ln a portable lamp structure, the combination of an elongatedbattery-casing, a lamp at one end thereof, and a circuit-con trollertherefor at the opposite end of the cas ing the said circuit-controllercomprising in its structure an angularly-bent arm 32 pivotally securedto the end of the casing, at or about the axis of the casing, andextending along the side of the casing and adapted to be brought intoelectrical connection therewith. i

4. Tn a portable electric-lampstructure,the combination of an elongatedbattery containing casing, a lamp and reflector, and a plurality of arms7, l0 secured to the lamp and pivotally mounted on the casing andforming an electrical and mechanical connection with the casing, circuitconnections, and a circuitcontroller for the same.

5. In aportable lamp structure, the combination of anelongatedbattery-containing casing, a plurality of conducting-arms securedthereto, circuit connections, a lampcasing supporting a reiiector andlamp, the said lamp-casing being pivotally secured to IOO IOS

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the arms by an electrical and-mechanical con

